The aircraft is a WWII-era Lockheed twin-engine PV-2 “Harpoon,” a land-based
medium patrol bomber. Known on the national air show circuit as "Hot Stuff,' it
is also identified as serial number (Navy Bureau Number) 37396.One of a very few airworthy Harpoons that remain of the 600 that were
originally built, Hot Stuff is a rare example of an oft-forgotten part of
aviation history.

The final development of the World War Two Lockheed twin-engine bombers, the
PV-2 was among the most capable medium bombers of the war. Harpoons saw action
with the Navy and Marine Corps all across the Pacific theater, from the Aleutian
Islands in the north to the Solomon Islands in the south. Bureau number 37396
was accepted by the U. S. Navy in March 1945 and was assigned to Patrol Bombing
Squadron (VPB)-136 in July 1945.

The Harpoon was a slightly enlarged and improved version of its predecessor, the
Lockheed PV-1 Ventura. The improvements included increased fuel-carrying
capacity for greater range, an enlarged bomb bay to allow a greater ordnance
load, and larger tail surfaces for better handling characteristics. Venturas and
Harpoons were fast, well-armed, and capable warplanes. The Harpoon was mass
produced at Lockheed Factory "A" in Burbank, California from March 1944 to
September 1945. Navy and Marine Corps Ventura squadrons began transitioning into
Harpoons upon their introduction in 1944. With an internal load of up to four
thousand pounds of bombs, depth charges, aerial mines, or a single 22 inch
diameter torpedo, plus eight five-inch high explosive rockets and another 2000
pounds of bombs on the wings, the PV-2 Harpoon could ruin the day for an enemy
target.

A total of nine 50-caliber machine guns completed the Harpoon’s armament. There
were five guns in the nose, two guns in the top turret, and two more rear-firing
guns in the tail-mounted “tunnel” position. The PVs also had one of the best
airborne radar sets produced during WW2, the APS-3 radar, installed in the nose.
With this radar, PV crews could spot something as small as a periscope on the
surface from miles away. The radar also gave the PVs the ability to bomb from
“above the clouds.” PVs were often used as lead ships, or “pathfinders”, guiding
formations of non-radar equipped bombers to the point where bombs could be
released.

Harpoon Combat Service—Aleutian Campaign

During the war, Hot Stuff was assigned to the US Navy’s Fleet Air Wing Four
(FAW-4), which operated out of airstrips on Adak, Attu and Shemya in the
Aleutian Islands off Alaska. Two FAW-4 squadrons had taken PV-2s into action by
the war’s end. However, Patrol Bombing Squadron 136, to whom Hot Stuff was
assigned, was still in the process of transitioning to Harpoons when the
Japanese surrender occurred. Hot Stuff, like so many military aircraft that
remain from the period, never saw combat, but she commemorates the combat
history of the type. Hot Stuff, with the majority of the PV-2 inventory, was
transitioned to the Naval Reserve at Naval Air Station Corpus Christi, TX, where
she remained until 1953. When the type was stricken from the Navy rolls in 1953,
the remaining Harpoon airframes were dispersed to foreign military services or
sold as surplus.

The four squadrons of Fleet Air Wing Four, termed the “Empire Express”,
conducted near-daily bombing missions (using both Venturas and Harpoons) against
the Japanese northern home islands—especially the fortress bases of Paramushiro
and Shimushu—from 1944 till the end of the war. It was a mission that has
largely been forgotten, but it was critically important. Over 15 percent of the
Japanese air defenses were assigned to defend against these attacks on the
Japanese homeland. That accounted for a great many Japanese airplanes,
antiaircraft guns, and personnel who would not be available to defend against
American operations farther south in the Pacific.

This forgotten theater of the war had its genesis on June 3, 1942, when Japanese
carrier-borne aircraft bombed the American installation at Dutch Harbor on the
Aleutian Island of Unalaska. On June 6-7, Japanese Marines landed on Kiska and
Attu islands in the western portion of the Aleutian chain—the only occupation of
American soil during the war. The Japanese proceeded to construct airbases on
Kiska, Attu, Shemya, and other islands.

On the 11th and 12th of June, the United States counterattacked with slow-flying
PBY Catalina flying boats and a squadron of B-24's. Air strikes continued until
April 1943, when US forces re-took the Japanese-held islands in a bloody battle.
In support of this operation, Fleet Air Wing 4 was assigned to the Aleutian
front at Adak with four squadrons of PV -1 Venturas.

In the fall of 1943, FAW-4 undertook the first in a long series of raids against
the Japanese northern home islands, with a photoreconnaissance mission flown by
a PV-1 Ventura from VPB-136—the squadron that later operated our aircraft.

The 700-nautical mile route from the Aleutians to the Kuriles became known as
the "Empire Express" and missions quickly changed from photoreconnaissance to
bombing strikes in early 1944. The "Empire Express" continued with daylight and
night bombing raids, using both models of PVs, until the end of the war.

Acquisition of N7265C by the American Military Heritage Foundation (AMHF)

Hot Stuff ceased service with the U.S Navy and Navy Reserves
in 1953, and was placed in storage at Litchfield Park, Arizona in February of
1954.Master Equipment Company of
Cheyenne, Wyoming, (later Ralco) purchased the aircraft as surplus in 1957.From that time to January 1986, the aircraft served in an aerial
application role, combating the spread of fire ants in the Southwestern U.S.In January 1986, the Historic Aircraft Memorial Foundation of Tyler,
Texas purchased her, they removed the old spray gear and started the process of
returning the aircraft to a military configuration.In 1989 the American Military Heritage Foundation acquired her and
brought her to Indiana.Here the
Harpoon was painted with the standard three-color WWII scheme appropriate for a
land-based Navy plane: Navy blue on all the upper surfaces, sky blue on the
sides of the fuselage and nacelles, and white on all the lower surfaces. The
national insignia (stars and bars) is displayed on the sides of the fuselage and
bottom of the right wing.

The organization acquired and fitted a Martin 250 top turret, a component that
had been removed and discarded by the previous owner, an agricultural-spray
operation. The turret is a favorite feature of the plane among airshow
attendees, and a popular in-flight seat among crew-members. The turret contains
replica guns, but is non-operational. An ongoing project is to restore its
functionality. Other ongoing restoration projects include re-fitting the radio
operator’s and navigator’s stations in the cabin to their wartime configuration.

In 2002, NOVA producers came calling on the AMHF. It seems they needed an
aircraft that looked exactly like a PV-1 Ventura for their documentary, The Last
Flight of Bomber 31. In this production, they were chronicling the story of an
ill-fated PV-1 and it’s crew from their last flight to the discovery of their
remains 55 years later.

The scenes of the flying aircraft were shot using Hot Stuff as a double for the
lost PV-1 The filming was done on a snowy morning at Mt. Comfort Airport, now
renamed Indianapolis Regional Airport, which is still the home of our aircraft
and organization, and the program aired on national PBS stations for two years.

AMHF is a 501(c)3 non-profit corporation. In 2009, the aircraft was certified by
the US Department of the Interior as a National Historic Landmark—a unique honor
for a mobile artifact.

Education and
Outreach

The primary
missions of AMHF are preservation of this rare historical artifact and education
of the public about its historical significance, as well as—because of the
aircraft’s association with VPB-136 and Fleet Air Wing Four—the larger history
of the “forgotten war” in the northern Pacific. Our organization brings the
plane to airshows across the country, where attendees are permitted to tour the
plane and hear about the type’s wartime service. We also host school outings,
and keep an open door for visiting groups to see our maintenance operations
first-hand. We provided materials and information that formed the basis of a
junior-high-level history curriculum in the Indianapolis Public Schools, and
regularly host veterans’ groups—most notably this past year, the reunion of
Patrol Bombing Squadron 148, a Harpoon squadron that flew out of the Solomon
Islands during the war.

Our organization also has a close, albeit non-monetary, relationship with the
USS Indianapolis Survivors’ Association. That ship was torpedoed and sunk in
1945. Its crew of over 1200 had, just days before, delivered the components for
the atomic bomb to Tinian Island. As the ship had been on a top-secret mission,
it was not reported lost.The
survivors of the sinking endured four days of horrifying conditions in
shark-infested waters. Fortuitously, a patrolling PV-1 Ventura of VPB-152
spotted the remaining survivors in the water and initiated the rescue operation.The first aircraft to respond, coincidentally, was a PB5Y Catalina
Seaplane piloted by Indiana native Adrian Marks. Marks landed, contrary to
orders, and stayed until a rescue ship arrived. Only 318 men out of the
Indianapolis’ original crew of 1200 survived the ordeal.

As our PV -2 is a look-alike for the PV-1, we performed a fly-over for the grand
opening of the USS Indianapolis Museum, and our organization has come to have a
relationship with theirs. The ship’s veterans who attended the event reported
afterwards that the distinctive sound of a PV’s engines was unforgettable to
them. On several subsequent occasions, we have displayed together with the USS
Indianapolis Association. For several years, our groups have co-located as a
"pair" at the Indianapolis Air Show. We have additionally discussed tentative
plans to travel together throughout the state to smaller venues much like the
Indiana Historical Society's "History Train" as the "Flying Classroom.”

In April 2011 we were awarded the Indiana Historical Preservation Award.We are registered as a Historical Artifact with the National Park Service
and the Indiana Historical Society.

The Geography Educators Network of Indiana (GENI) has developed a lesson plan on
their Geography and History of the World (GHW) website at www. IUPUI.edu and has
deemed it "Indiana's newest lesson plan.” Nova also has a basic curriculum on
their website as a companion to the film "Last Flight of Bomber 31."

Additionally, our
aircraft was the subject of an article that appeared in the Australian magazine
“Flightpaths” in 2009, describing the efforts of our maintenance force in
replacing a failed engine and returning the plane to flight during the preceding
two years.

Goals for the Future

Our ultimate goals include as complete a restoration of the aircraft asis possible, as well as securing a permanent, weather proofhome to protect her from the elements.Upon leaving Navy service, she was completely stripped ofher wartime mission equipmentOver the years, we have acquired and installed replacement components,
such as the top turret, but much remains to be done before we realize our
ultimate goal of restoring her completely. We have accumulated sufficient
components to begin restoring the radio operator’s and navigator’s stations, but
the necessary components for the radar operator’s station, tunnel gunner’s
position, and the items that will fit out the main-cabin radio racks remain
elusive.

Due to its size, the aircraft has had
difficulty in finding a home indoors. Because it has been located outdoors for
its entire existence, a great deal of our maintenance effort is devoted to
correcting the ravages of weather. Being outdoors twelve months of the year is
hard both on the 65-year-old airframe and the not-much-younger maintenance
force. Its 75-foot wingspan is far too large for most rental hangars. Obtaining
a donated hangar of sufficient size to house the aircraft has so far proven
impossible. Our goal is to obtain funding sufficient to either rent or construct
an appropriate structure, which can also provide the necessary infrastructure
for display of historical artifacts.

The
Lockheed PV-2 "Harpoon"

The PV-2 Harpoon
was a major redesign of the Ventura with the wing area increased from 551 ft²
(51.2 m²) to 686 ft² (63.7 m²) giving an increased load-carrying capability. The
motivation for redesign was weaknesses in the PV-1, since it had shown to have
poor-quality takeoffs when carrying a full load of fuel. On the PV-2, the
armament became standardized at five forward-firing machine guns. Many early
PV-1s had a bombardier's position, which was deleted in the PV-2. Some other
significant developments included the increase of the bomb load by 30% to 4,000
lb (1,800 kg), and the ability to carry eight 5-inch (127 mm) HVAR rockets under
the wings. While the PV-2 was expected
to have increased range and better takeoff, the anticipated speed statistics
were projected lower than those of the PV-1, due to the use of the same engines
but an increase in weight. The Navy ordered 500 examples, designating them with
the popular name Harpoon.

Early tests indicated a tendency for the wings to wrinkle
dangerously. As this problem could not be solved by a 6 ft (1.8 m) reduction in
wingspan (making the wing uniformly flexible), a complete redesign of the wing
was necessitated. This hurdle delayed entry of the PV-2 into service. The PV-2s
already delivered were used for training purposes under the designation PV-2C.
By the end of 1944, only 69 PV-2s had been delivered. They finally resumed when
the redesign was complete. The first aircraft shipped were the PV-2D, which had
eight forward-firing machine guns and was used in ground attacks. When World War
II ended, all of the order was cancelled.

With the wing problems fixed, the PV-2 proved reliable, and
eventually popular. It was first used in the Aleutians by VP-139, one of the
squadrons that originally used the PV-1. It was used by a number of countries
after the war’s end, but the United States ceased ordering new PV-2s, and they
were all soon retired from service. [Andrade 1979,
pp. 52–53, 207–208, 247.]